{"id":"CVE-2023-29550","title":"Memory safety bugs present in Firefox 111 and Firefox ESR 102.9","summary":"Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerabi…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","vendor":"mozilla","product":"firefox","affected":["firefox < 112.0","firefox_esr < 102.10","firefox_mobile < 112.0","focus < 112.0","thunderbird < 102.10"],"patched":["firefox 112.0","firefox_esr 102.10","firefox_mobile 112.0","focus 112.0","thunderbird 102.10"],"published":"2023-06-02","updated":"2026-08-19","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-29550","references":[{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1720594%2C1812498%2C1814217%2C1818357%2C1751945%2C1818762%2C1819493%2C1820389%2C1820602%2C1821448%2C1822413%2C1824828","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-13/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-14/","label":"security@mozilla.org"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-15/","label":"security@mozilla.org"},{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1720594%2C1812498%2C1814217%2C1818357%2C1751945%2C1818762%2C1819493%2C1820389%2C1820602%2C1821448%2C1822413%2C1824828","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-13/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-14/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-15/","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00702,"epssPercentile":0.51429,"ingestedAt":"2026-08-19T15:41:15.840Z","slug":"CVE-2023-29550","body":"## Overview\n\nMemory safety bugs present in Firefox 111 and Firefox ESR 102.9. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.\n\n## Affected\n\n- `firefox < 112.0`\n- `firefox_esr < 102.10`\n- `firefox_mobile < 112.0`\n- `focus < 112.0`\n- `thunderbird < 102.10`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `firefox 112.0`\n- `firefox_esr 102.10`\n- `firefox_mobile 112.0`\n- `focus 112.0`\n- `thunderbird 102.10`","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}